Finding the Fourth Proportional to 1,613.76, 2,227.94 and 1,240.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.76 : 2,227.94 = 1,240.01 : x
2. Step 2: Convert to fraction form
   1,613.76/2,227.94 = 1,240.01/x
3. Step 3: Cross multiply
   1,613.76x = 2,227.94 × 1,240.01
4. Step 4: Simplify right side
   1,613.76x = 2,762,650.54
5. Step 5: Solve for x
   x = 2,762,650.54/1,613.76
6. Step 6: Final answer
   x = 1,711.93